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gst_all_1.gst-plugins-good: fix building rpicamsrc #217085

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merged 3 commits into from
Jul 27, 2023

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lopsided98
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Description of changes

An assertion was preventing raspiCameraSupport from being enabled on 32-bit ARM, and the build was failing because it needs to be told where to find libraspberrypi.

Later, I also realized that rpicamsrc is actually not supported on aarch64, because the MMAL libraries in libraspberrypi don't support aarch64. I believe there was a period of time where MMAL could be built on aarch64, which led to this code in nixpkgs, but this support was removed upstream because it was buggy (see raspberrypi/userland#688).

I tested that rpicamsrc works on a Raspberry Pi Zero.

Things done
  • Built on platform(s)
    • x86_64-linux
    • aarch64-linux
    • x86_64-darwin
    • aarch64-darwin
    • armv6l-linux (cross)
  • For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
  • Tested, as applicable:
  • Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
  • Tested basic functionality of rpicamsrc
  • 23.05 Release Notes (or backporting 22.11 Release notes)
    • (Package updates) Added a release notes entry if the change is major or breaking
    • (Module updates) Added a release notes entry if the change is significant
    • (Module addition) Added a release notes entry if adding a new NixOS module
  • Fits CONTRIBUTING.md.

cc @vikanezrimaya @nh2

rpicamsrc is supported on 32-bit ARM as well, but this was not allowed by the
assertion.
The build script is unable to find the libraspberrypi libraries unless
explicitly told their location.
@lopsided98
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I fixed the conflicts.

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@lilyinstarlight lilyinstarlight left a comment

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Looks good to me, thank you for this!

MMAL is not supported on 64-bit (see [1]), so rpicamsrc cannot be built on
aarch64.

[1] raspberrypi/userland#688
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@lilyinstarlight lilyinstarlight left a comment

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Awesome, thank you again!

@lilyinstarlight lilyinstarlight merged commit 78faafa into NixOS:master Jul 27, 2023
7 of 8 checks passed
@lopsided98 lopsided98 deleted the gstreamer-rpicamsrc branch July 27, 2023 21:07
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4 participants